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Best March Madness Betting Sites and Apps for 2025

March Madness is one of the biggest betting events of the year and to celebrate, we've compiled the best apps for you to download and make the most of a plethora of epic promo codes.

Best March Madness Betting Sites and Apps for 2025

March Madness 2025, the most exciting basketball tournament in the country, is back as the games get underway all over the country.

The brackets have now been set which means teams and fans will already be looking at their journey to March Madness glory. The cinderella stories could be just games away!

With such a big sporting event, betting is always a big part of the excitement and you can get involved with some of the sportsbooks in this guide.

They will also have some enticing welcome offers that you can take advantage of to give yourself some huge bonuses to begin your March Madness betting.

With that in mind, oddschecker has compiled a list of the very best betting app that you simply have to use during March Madness.

DraftKings Sportsbook

  • App Store Review: 4.7/5
  • DraftKings Promo Code: Bet $5, Get $200 instantly as a new user

DraftKings is one of the best places to bet on March Madness this year due to the great number of betting markets and competitive odds.

You can bet on the outright winner, individual games, team props, and player props plus so much more. You can even claim $200 in bonus bets by placing a $5 wager on any March Madness market.

CLICK HERE or on the offer button below to claim the DraftKings promo code

Register your account with DraftKings Sportsbook by entering all the required details

Deposit and place a $5 wager on any team or game during March Madness

Win $200 in bonus bets instantly, even if your first bet goes on to lose, thanks to the DraftKings promo code

*Users located in CO, KS, IA, WV, VA, NY, and MA can also Score a No Sweat Parlay Every Day after securing their bonus bets!

DraftKings also has a special bracket challenge for March Madness - just navigate to the Promos and find March Mania Picks to enter for a chance to win millions!

FanDuel Sportsbook

  • App Store Review: 4.8/5
  • FanDuel Promo Code: Bet $5, get $200 as a new user

Next up, FanDuel is one of the leading sportsbooks when it comes to sports betting and this week is a good time to sign up if you haven't already.

March Madness attracts millions of viewers with millions of bets being placed too. When signing up to place your bets on March Madness this year, you can claim $200 in bonus bets when you place a $5 bet that wins.

CLICK HERE or on the offer button below to claim the $200 March Madness FanDuel promo code

Complete your FanDuel Sportsbook registration - there is no specific FanDuel promo code to enter, as our links take care of this for you

Step 1) CLICK HERE or on the 'Claim Now' button anywhere in this article, to unlock your $200 FanDuel promo code

Step 2) Complete your FanDuel Sportsbook registration - You will be presented with on-screen instructions which are easy to follow

Step 3) Deposit $5+ into your new FanDuel Sportsbook account

Step 4) Bet $5 on any March Madness matchup

Step 5) Unlock an additional $200 in bonus bets on top of your winnings, if your qualifying wager is settled as a winner!

FanDuel is also running a special bracket challenge for March Madness - their Tourney Shuffle' Em give you the chance to play for 100,000 in total prizes!

BetMGM Sportsbook

  • App Store Review: 4.8/5
  • BetMGM Bonus code:

CO/MI/NJ/PA/WV: Bet $10 Get $150 If You Win

Remaining States: $1500 Paid Back in Bonus Bets if You Don't Win Your First Bet

BetMGM is synonymous with betting on basketball and the March Madness tournament is no different.

They have a vast number of betting markets that you can use during March Madness that are perfect for the Bet $10 Get $150 If You Win or the $1500 Paid Back in Bonus Bets if You Don't Win Your First Bet. For more details, check out the process below.

Step One) CLICK HERE or on the 'Claim Now' button anywhere in this article, to secure the BetMGM promo code located in your state

Step Two) Complete your BetMGM Sportsbook registration

Step Three) Deposit $10+ into your new BetMGM account

Step Four) Bet $10 on any College Basketball matchup during March Madness

Step Five) Get $150 in bonus bets guaranteed, or receive your selected wager paid back in bonus bets if you don't win your first bet

Along with these great offers, BetMGM also has you covered with a great March Matchups contest where you can score points to win bonus bets. Just navigate to their Promo Page to get started.

bet365

  • App Store Review: 4.8/5
  • bet365 promo code: Bet $5, Get $150 in Bonus Bets

Bet365 is a sportsbook that is growing rapidly in the US after expanding from the UK and launched in North Carolina before the 2024 competition last year.

To help you with your March madness betting, new customers can claim $150 in bonus bets when they place a qualifying wager of $5 on any sports market.

CLICK HERE or on the offer button below to claim your bet365 bonus code.

Enter the code 'CHECK' when completing your bet365 registration.

Deposit a minimum of $10 into your new bet365 account.

Bet $5 on any March Madness market with minimum odds of -500.

Get $150 in bonus bets even if your qualifying bet loses, thanks to the Bet365 bonus code.

Check out bet365's world famous bracket challenge as well, read more here.

Fanatics Sportsbook

  • App Store Review: 4.5/5
  • Fanatics promo code: 10 x $100 Bonus Bet Match Bonus

Fanatics Sportsbook is our final recommendation when placing your bets on March Madness this year, as you can claim up to $1,000 in free bets as a new customer.

CLICK HERE to take you to Fanatics Sportsbook which will confirm you’ve qualified for the promotion.

Once on this page, click “Get Started”. You could also use the QR code to download the app, it’s important you download the app via this method not straight from the app store to ensure you qualify for the promotion.

Fill in your personal details to register for the sportsbook.

Once you’ve created your account, you can click “Deposit”, you will need to make a deposit of at least $5.

Now you’ve funded your account, make a selection with odds greater than –200. Place your bet, whatever your wager is you will get that as a bonus once the bet has settled.

Repeat this process for the following nine days.

Fanatics is also running a March Million Bracket Challenge for a chance to win up to $1M. Just navigate to the promo section to get started.

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